30553

Properties

Appears in sequences

• Numbers k such that 6!*(2*k-7)!/(k!*(k-1)!) is an integer.at n=31A004786
• Numbers k such that 7!*(2k-8)!/(k!*(k-1)!) is an integer.at n=35A004787
• Integer part of ((4th elementary symmetric function of 1,2,..,n)/(2nd elementary symmetric function of 1,2,...,n)).at n=34A024173
• a(n) = Sum_{k=0..floor(n/6)} C(n-3k,3k) * 3^k.at n=20A100136
• Number of partitions p of n not containing ceiling((min(p) + max(p))/2) as a part.at n=40A238485
• Primes p such that each decimal digit of p is equal to the difference of two other digits of p.at n=20A255892
• Primes having only {3, 5, 0} as digits.at n=10A260223
• Numbers k such that 2*10^k + 63 is prime.at n=24A293535
• Primes dividing nonzero terms in A002065.at n=34A328704
• Primes that are palindromes in primorial base.at n=22A333424
• a(n) is the least integer k such that k*prime(n) is in A346113, or 0 if no such k exists.at n=4A346177
• Array read by antidiagonals: T(m,n) (m >= 0, n >= 0) = number of connected row convex (CRC) constraints between an m-element set and an n-element set.at n=49A372067
• Array read by antidiagonals: T(m,n) (m >= 0, n >= 0) = number of connected row convex (CRC) constraints between an m-element set and an n-element set.at n=50A372067
• Primes having only {0, 3, 4, 5} as digits.at n=18A386056
• Primes having only {0, 3, 5, 6} as digits.at n=19A386061
• Primes having only {0, 3, 5, 7} as digits.at n=42A386062
• Primes having only {0, 3, 5, 8} as digits.at n=22A386063
• Primes having only {0, 3, 5, 9} as digits.at n=36A386064
• Prime numbersat n=3298